Merge pull request #277 from jbenet/fuse-fix

Fix buffer size bug in fuse mounts

fuse/ipns/ipns_test.go

@@ -5,7 +5,6 @@ import (
 	"crypto/rand"
 	"io/ioutil"
 	"os"
-	"runtime"
 	"strings"
 	"testing"
 	"time"
@@ -300,10 +299,6 @@ func TestFastRepublish(t *testing.T) {
 
 // Test writing a medium sized file one byte at a time
 func TestMultiWrite(t *testing.T) {
-	if runtime.GOOS == "darwin" {
-		link := "https://github.com/jbenet/go-ipfs/issues/147"
-		t.Skipf("Skipping as is broken in OSX. See %s", link)
-	}
 
 	_, mnt := setupIpnsTest(t, nil)
 	defer mnt.Close()

fuse/ipns/ipns_unix.go

@@ -232,6 +232,9 @@ func (s *Node) Attr() fuse.Attr {
 			log.Errorf("Error getting size of file: %s", err)
 			size = 0
 		}
+		if size == 0 {
+			size = s.dagMod.Size()
+		}
 		return fuse.Attr{
 			Mode:   0666,
 			Size:   size,

fuse/readonly/readonly_unix.go

@@ -98,13 +98,20 @@ func (s *Node) Attr() fuse.Attr {
 	switch s.cached.GetType() {
 	case ftpb.Data_Directory:
 		return fuse.Attr{Mode: os.ModeDir | 0555}
-	case ftpb.Data_File, ftpb.Data_Raw:
-		size, _ := s.Nd.Size()
+	case ftpb.Data_File:
+		size := s.cached.GetFilesize()
 		return fuse.Attr{
 			Mode:   0444,
 			Size:   uint64(size),
 			Blocks: uint64(len(s.Nd.Links)),
 		}
+	case ftpb.Data_Raw:
+		return fuse.Attr{
+			Mode:   0444,
+			Size:   uint64(len(s.cached.GetData())),
+			Blocks: uint64(len(s.Nd.Links)),
+		}
+
 	default:
 		log.Error("Invalid data type.")
 		return fuse.Attr{}

test/t0040-add-and-cat.sh

@@ -48,7 +48,7 @@ test_expect_success "generate 100MB file using go-random" '
 
 test_expect_success "sha1 of the file looks ok" '
 	echo "54dc0dbbc353b2ffb745285793f89af0c9d98449  mountdir/bigfile" >sha1_expected &&
-	sha1sum mountdir/bigfile >sha1_actual &&
+	shasum mountdir/bigfile >sha1_actual &&
 	test_cmp sha1_expected sha1_actual
 '
 
@@ -63,7 +63,7 @@ test_expect_success "ipfs add bigfile output looks good" '
 '
 
 test_expect_success "ipfs cat succeeds" '
-	ipfs cat $HASH | sha1sum >sha1_actual
+	ipfs cat $HASH | shasum >sha1_actual
 '
 
 test_expect_success "ipfs cat output looks good" '
@@ -72,7 +72,7 @@ test_expect_success "ipfs cat output looks good" '
 '
 
 test_expect_success "cat ipfs/bigfile succeeds" '
-	cat ipfs/$HASH | sha1sum >sha1_actual
+	cat ipfs/$HASH | shasum >sha1_actual
 '
 
 test_expect_success "cat ipfs/bigfile looks good" '

unixfs/io/dagmodifier.go

@@ -173,6 +173,13 @@ func (dm *DagModifier) WriteAt(b []byte, offset uint64) (int, error) {
 	return origlen, nil
 }
 
+func (dm *DagModifier) Size() uint64 {
+	if dm == nil {
+		return 0
+	}
+	return dm.pbdata.GetFilesize()
+}
+
 // splitBytes uses a splitterFunc to turn a large array of bytes
 // into many smaller arrays of bytes
 func splitBytes(b []byte, spl chunk.BlockSplitter) [][]byte {